Borderou de evaluare (job #670502)

Compilare: main.cpp: In function 'int readDate(int, int, int)': main.cpp:17:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 17 | while(i < s.size() && !isdigit(s[i])) | ~~^~~~~~~~~~ main.cpp:20:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 20 | while(i < s.size() && isdigit(s[i])) | ~~^~~~~~~~~~ main.cpp:22:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 22 | while(i < s.size() && !isalpha(s[i])) | ~~^~~~~~~~~~ main.cpp:24:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 24 | while(i < s.size() && isalpha(s[i])) | ~~^~~~~~~~~~ main.cpp:26:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 26 | while(i < s.size() && !isdigit(s[i])) | ~~^~~~~~~~~~ main.cpp:29:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 29 | while(i < s.size() && isdigit(s[i])) | ~~^~~~~~~~~~ main.cpp:31:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 31 | while(i < s.size() && !isdigit(s[i])) | ~~^~~~~~~~~~ main.cpp:34:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 34 | while(i < s.size() && isdigit(s[i])) | ~~^~~~~~~~~~